ATI LPN
PN ATI Comprehensive Predictor
1. What are the primary causes of respiratory acidosis?
- A. Hypoventilation and lung disease
- B. Hyperventilation and pneumonia
- C. Increased oxygen saturation and tachypnea
- D. Dehydration and hypoxia
Correct answer: A
Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.
2. What are the key factors in assessing a patient's fall risk?
- A. Assess the patient's age and mobility
- B. Evaluate the patient's medication list for sedatives
- C. Assess the patient's vision and hearing
- D. Check for recent falls and cognitive impairment
Correct answer: A
Rationale: The correct answer is A. Assessing the patient's age and mobility are key factors in determining fall risk. Age can affect balance and reaction time, while mobility influences the patient's stability. Choices B, C, and D are important considerations in assessing a patient's fall risk as well, but age and mobility play a more direct role in determining the patient's susceptibility to falls.
3. A nurse is caring for a client who is in the early stages of hypovolemic shock. Which of the following findings should the nurse expect?
- A. Heart rate 60/min
- B. Increased urinary output
- C. Increased respiratory rate
- D. Hypothermia
Correct answer: C
Rationale: In the early stages of hypovolemic shock, the body initiates compensatory mechanisms to maintain perfusion. One of these mechanisms is an increased respiratory rate to improve oxygen delivery. This helps to offset the decreased circulating blood volume. A heart rate of 60/min (choice A) is not expected in hypovolemic shock; instead, tachycardia is a common finding due to the body's attempt to maintain cardiac output. Increased urinary output (choice B) is not typically seen in hypovolemic shock as the body tries to conserve fluid. Hypothermia (choice D) is usually a late sign of shock when the body's compensatory mechanisms are failing, and perfusion is severely compromised.
4. A nurse is caring for a client who has bipolar disorder and is experiencing acute mania. The nurse obtained a verbal prescription for restraints. Which of the following actions should the nurse take?
- A. Request a renewal of the prescription every 8 hours.
- B. Check the client's peripheral pulse rate every 30 minutes.
- C. Obtain a prescription for restraint within 4 hours.
- D. Document the client's condition every 15 minutes.
Correct answer: D
Rationale: In a situation where a verbal prescription for restraints is obtained for a client experiencing acute mania, the nurse should document the client's condition every 15 minutes. This frequent documentation allows for accurate monitoring of the client's condition, ensuring safety and compliance. Requesting a renewal of the prescription every 8 hours (Choice A) is not necessary as the focus should be on monitoring the client's condition. Checking the client's peripheral pulse rate every 30 minutes (Choice B) is not directly related to the need for restraints in this scenario. Obtaining a prescription for restraint within 4 hours (Choice C) is not a priority when a verbal prescription is already obtained and immediate action is needed for the client's safety.
5. A client who has a new prosthesis for an above-the-knee amputation of the right leg needs teaching on its use. Which of the following instructions should the nurse include?
- A. Wear the prosthesis for 2 hours at a time
- B. Remove the prosthesis every other day
- C. Apply the prosthesis immediately upon waking each day
- D. Elevate the stump for 24 hours after applying the prosthesis
Correct answer: C
Rationale: The correct instruction is to apply the prosthesis immediately upon waking each day. This helps the client adjust to and maintain mobility. Choice A is incorrect because wearing the prosthesis for only 2 hours at a time may not be sufficient for proper adjustment. Choice B is incorrect as removing the prosthesis every other day is not a standard practice and may hinder the client's mobility. Choice D is incorrect because elevating the stump for 24 hours after applying the prosthesis is unnecessary and not a recommended practice.
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